Industrial contaminants assays

Millipore has released the VOC-Pak cartridge for removal of volatile organic contaminants (VOCs) from ultrapure water. Scientists performing analyses on these common industrial contaminants can now be assured of having VOC-free ultrapure water for their work.

VOCs are regularly monitored in drinking water following standards established by the WHO as well as regulatory agencies in many countries. The analytical methods used to test drinking water and other samples for VOCs use ultrapure water as a critical reagent - if the ultrapure water contains detectable levels of VOCs it will affect the accuracy of the VOC analysis; the VOC-Pak cartridge removes these contaminants to levels that are below detectable limits.

Designed for use with Millipore’s Type I water purification systems (such as the Milli-Q, Direct-Q, Synergy and Simplicity systems), the VOC-Pak cartridge can easily be connected to these systems’ water dispensing outlet to provide VOC-free water for standard solutions preparation, sample dilution or glassware rinsing.

The VOC-Pak cartridge employs activated carbon purification media to produce water in which the VOC concentration is below the analytical quantification limit for a number of common VOCs, provided that the VOC concentration in feed water does not exceed 1 µg/L and the total oxidisable carbon of the ultrapure water entering the VOC-Pak cartridge is below 5 ppb. An example of the types of VOC molecules removed by the VOC-Pak cartridge includes carbon tetrachloride, benzene, chloroform, dibromochloromethane and toluene.